Garmin Explore the GMA 340 Installation Manual and GMA 240 Audio Panel Setup

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2 INSTALLATION OVERVIEW

2.1Introduction

This section provides the necessary information for the installation and checkout of the GMA 240 Audio Panel. Installation of the GMA 240 will differ according to equipment location and other factors. Cabling will be fabricated by the installing agency to fit these various requirements. The appendices contain interconnect wiring diagrams, mounting dimensions, and information pertaining to installation.

2.2Installation Materials

2.2.1Equipment Available

GMA 240 Audio Panel, Ship Level Assembly, P/N 010-00735-() includes the following, depending on part number:

Item

Garmin P/N

 

 

Connector Kit, GMA 340

011-00652-00

 

 

Rack Backplate, GMA 340

011-00678-00

 

 

Unit Assembly, GMA 240

011-01988-00

 

 

Audio Cables, 2.5 mm RA Stereo Plug

011-02079-00

 

 

Install Rack, GMA 340

115-00262-00

 

 

2.2.2Additional Equipment Required

Cables: The installer will fabricate and supply all system cables. Interconnect wiring diagrams are detailed in Appendix B.

Hardware: #6-32 100° flat head screw (6 ea.) and #6-32 self-locking nut (6 ea.). Hardware required to mount the installation rack is not provided.

Stereo headphone jacks (up to 4), microphone jacks (up to 4), 3.5mm stereo jacks (up to 2). Insulating type jacks or insulating washers should be used for all jacks to isolate them from aircraft chassis.

2.3GMA 240 Wiring, Configuration, and Adjustment Options

The GMA 240 has several configuration/adjustment options, consideration of these options should be discussed with the end user(s) of the aircraft before wiring begins. These configuration/adjustments are described in the following sections:

Wiring options – Sections 2.3.1 and 4.4.1

Internal configuration jumpers - Section 2.3.1

Volume/Mute adjustments - Section 2.3.2

GMA 240 Installation Manual

Page 2-1

190-00917-01

Rev. A

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Contents GMA Description Record of RevisionsSection Range Information Subject to Export Control LawsThis page intentionally left blank Table of Contents Appendix a Outline and Installation Drawings List of Illustrations GMA 240 Hardware MOD Level History Equipment Description IntroductionPhysical Characteristics Technical SpecificationsCharacteristic Specification Features SummaryElectrical Characteristics Power Requirements Reference DocumentsPart Number Document Limited Warranty Blank Equipment Available Installation MaterialsGMA 240 Wiring, Configuration, and Adjustment Options Garmin P/NInternal Configuration Jumpers Component Name Default DescriptionMusic VOLUME/MUTE Configuration AdjustmentsHardwire Configuration Option Access Hole Location Top ViewNoise GMA 340 Unit Rack GMA 240 MountingUnpacking Unit Electrical ConnectionsPositioner Audio Shield Termination GMA 240 InstallationTransceiver Operational Check Post Installation CheckoutLamp Test Failsafe Operation CheckMusic System Check Aircraft Receivers CheckPin List Connector Description1 P2401 Connector J2401 Pin Assignments Pin Name 2 J2402 Connector J2402 Pin Assignments Pin Name Pin Connector Pin Name Aircraft Power and Lighting3 P2403 Connector front panel 2.5 mm mini-jack Aircraft PowerConfiguration Pins External Configuration PinsPin Connector Pin Name Description Intercom Key Inputs if configured COM Audio and Mic Keys Pin Connector Pin Name DescriptionAudio Inputs/Outputs and Mic Keys Pin Name Description Alert Audio I/O Pin Connector Pin Name DescriptionAUX and NAV Audio Inputs Pin Connector Pin Name Description Failsafe Warning Audio PinTel Audio I/O Pin Connector Pin Name Description Headset Outputs Pin Connector Pin Name DescriptionCOM Swap Pin Connector Pin Name Description Appendix a Outline and Installation Drawings Figure A-2. GMA 240 Connector/Rack Assembly Drawing Figure A-3. GMA 240 Recommended Panel Cutout Dimensions Appendix B Interconnect Drawings Figure B-1. GMA 240 Interconnect Drawing page 2 Figure B-1. GMA 240 Interconnect Drawing page 3 GMA240 J2401 Top of Main Board Bottom of Main Board

GMA 240 specifications

The Garmin GMA 240 is a state-of-the-art audio panel designed specifically for aviation applications. This device is known for its advanced features, user-friendly interface, and superior sound quality, making it a popular choice among pilots and aircraft owners. One of the standout characteristics of the GMA 240 is its ability to integrate seamlessly with a variety of communication and navigation systems, enhancing situational awareness and streamlining cockpit operations.

One of the main features of the GMA 240 is its capability to manage multiple audio inputs. The panel provides independent volume controls for the pilot and co-pilot, allowing each to adjust their audio levels according to their preferences. Additionally, the GMA 240 offers a dedicated input for auxiliary devices, such as smartphones or tablet computers, facilitating music playback or calls during flight.

The GMA 240 also incorporates advanced noise reduction technology. This feature minimizes ambient noise interference, ensuring that communication between the crew and air traffic control is crystal clear. The panel is equipped with a digital processing function that enhances audio clarity and reduces background noise, a critical asset in the typically noisy environment of an aircraft cockpit.

Another noteworthy characteristic of the GMA 240 is its intuitive operation. The layout of the controls is logical and straightforward, allowing pilots to adjust settings quickly and efficiently without distraction. This ease of use is crucial, especially during high-pressure situations when pilots need to maintain focus on flying while managing audio communications.

The GMA 240 supports a wide range of aircraft configurations, making it a versatile choice for various aviation needs. It is designed to be compatible with both general aviation and commercial aircraft, further extending its usability in different environments. The panel meets rigorous safety standards, ensuring it can withstand the demands of aviation use.

In terms of installation, the GMA 240 is engineered for easy integration into existing cockpits, requiring minimal modifications. Its compact design and robust build quality ensure durability even in challenging flight conditions.

In summary, the Garmin GMA 240 audio panel stands out for its combination of advanced features, user-friendly design, and high-quality performance. With its excellent noise reduction capabilities, independent audio controls for each crew member, and broad compatibility, it is an essential tool for enhancing communication and safety in the cockpit. This audio panel continues to be a preferred choice for aviation professionals seeking reliability and efficiency.